Just purchased a new pt111 g2 last week. Got it home and cleaned it really well and oiled the gun. I replaced the guide rod with the stainless from lakeline, loaded both mags and let the gun sit for for a week. Everyday I would pull the slide back several times and dry fire. Just got back from the range and it didn't go well at all. The gun would jam on every other round, failure to go into battery, failure to lock slide back, brass falling on my head. I have read many things online as to what to do and I'm at a loss. The feed ramp is smooth as glass. This happened with both mags. I was using Winchester white box and critical defense ammo. I'm really not wanting to send the gun back. Any help would be appreciated.